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CSA G40.21 350A vs EN 10025-5 S355J2WP

Minimal Match — 35% match based on chemical composition and mechanical property overlap.

CSA G40.21 350A (CSA G40.21-13 (R2023)) and EN 10025-5 S355J2WP (EN 10025-5:2019) are both steel grades. Both fall under the Structural Steel (Corten / Weathering) category. CSA G40.21 350A is typically used for exposed structural steelwork, bridges, retaining walls, coastal infrastructure, architectural facades., while EN 10025-5 S355J2WP is commonly used for high-phosphorus weathering steel for enhanced patina formation, improved low-temperature toughness; containers, smokestacks, freight wagons, silos, pylons, bridges, architectural exposed structures. CSA G40.21 350A is defined under Canadian Standards Association (CSA), originating from Canada, while EN 10025-5 S355J2WP is defined under European Standard (EN), originating from Europe.

As per chemical composition, CSA G40.21 350A vs EN 10025-5 S355J2WP is a 71.7% match. As per mechanical properties, the match is 41.7%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With CSA G40.21 350A:
ASTM A588 AS/NZS 3678 Grade 350WR CSA G40.21 260WT CSA G40.21 50W JIS G3114 SMA400 ASTM A588 Grade A EN 10025-5 S355J0WP EN 10025-5 S355J2W ASTM A709 Grade HPS 70W CSA G40.21 480A EN 10025-5 S235J2W ASTM A588 Grade B
Match Breakdown
CHEMISTRY MATCH
71.7%
MECHANICAL MATCH
41.7%
OVERALL
35%
Specifications
Property CSA G40.21 350A EN 10025-5 S355J2WP
Standard CSA G40.21-13 (R2023) EN 10025-5:2019
Category Structural Steel (Corten / Weathering) Structural Steel (Corten / Weathering)
C (%) max 0.19 <=0.12
Mn (%) max 1.35 <=1.0
Si (%) max 0.65 <=0.75
P (%) max 0.035 0.06-0.15
S (%) max 0.035 <=0.030
Cu (%) 0.25-0.4 0.25-0.55
Cr (%) 0.4-0.65 0.30-1.25
Ni (%) 0.4-0.7 Not specified
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property CSA G40.21 350A EN 10025-5 S355J2WP
Yield Strength 350 MPa min >=355 MPa
Tensile Strength 480-650 MPa 470-630 MPa
Elongation Not specified >=22%
Condition Not specified Nominal thickness up to 16 mm for yield, 3 to 100 mm for tensile, 3 to 40 mm for elongation (Lo = 5.65 sqrt(S0), longitudinal); transverse values are lower, see blocks
Typical Applications
CSA G40.21 350A
Exposed structural steelwork, bridges, retaining walls, coastal infrastructure, architectural facades.
EN 10025-5 S355J2WP
High-phosphorus weathering steel for enhanced patina formation, improved low-temperature toughness; containers, smokestacks, freight wagons, silos, pylons, bridges, architectural exposed structures
Key Differences
Can CSA G40.21 350A Be Substituted With EN 10025-5 S355J2WP?
CSA G40.21 350A and EN 10025-5 S355J2WP share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
Forms & Sizes Available on M-EX
CSA G40.21 350A
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 3300–3400 mm (129.92–133.86 in)
EN 10025-5 S355J2WP
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 3900–4200 mm (153.54–165.35 in)
On M-EX Right Now
CSA G40.21 350A
2 active listings and RFQs →
EN 10025-5 S355J2WP
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between CSA G40.21 350A and EN 10025-5 S355J2WP?
CSA G40.21 350A specifies Ni which is not specified for EN 10025-5 S355J2WP.
Can CSA G40.21 350A be substituted with EN 10025-5 S355J2WP?
CSA G40.21 350A and EN 10025-5 S355J2WP share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.